<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>加法</title>
    <script src="https://unpkg.com/vue/dist/vue.js"></script>
</head>
<body>
    <div id="app-6">
        
        <input v-model="message" type="number">+
        <input v-model="message1" type="number">=
        <span>{{ message*1+message1*1 }}</span>
    </div>
    <script>
        var app6 = new Vue({
            el: '#app-6',
            data: {
                message: 0,
                message1:0
            }
        })
    </script>
</body>
</html>